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CWNP CWDP-304 Exam Topics:
Section
Objectives
Define Specifications for the WLAN - 25%
Collect business requirements and constraints
- Business use cases and justification
- User requirements
- Regulatory compliance
- Industry compliance
- Budget
- Aesthetics
- Architectural constraints
- Mounting restrictions
- Access restrictions
- Time constraints
- Building codes and safety codes
Collect and define technical requirements
- Vendor selection
- Location services such as RTLS
- Latency requirements
- Signal strength requirements
- Capacity requirements
- Security requirements
- BYOD and guest access
- Roaming
- Monitoring
- Authentication and encryption
- Applications and their specific requirements
- WLAN upgrade requirements, when applicable
- Bridge link requirements, when applicable
- Voice over WLAN (VoWLAN), when applicable
- Client devices including most important and least capable device
- Requirement areas
Collect project documentation
- Validated floor plans
- Network infrastructure
- Network diagrams
- AP locations
- Existing network services including DNS, DHCP, NTP, and authentication servers
- Switch capabilities and capacity
- Cabling infrastructure
- Cabling maps and plans
- Wiring closet locations
- Power availability and PoE capabilities
- Existing wireless systems
- Previous design/survey documentation
Define requirement areas including essential metrics for each requirement
- Client device types and capabilities
- Applications and their requirements
- User and device density
- SSIDs
- Security settings
- Understand common vertical markets
Gather information on environmental factors
- Building materials
- Attenuation values
- Ceiling heights
- Site annotations (photos, notes, plans)
- Wireless environment scan
- Packet captures
- Spectrum captures
- Wi-Fi scanners
Design the WLAN - 40%
Define WLAN architectures and select the appropriate architecture for a design
- Controller-based (physical and virtual) architectures
- Distributed (cloud-based and local WNMS)
- Standalone/Autonomous APs
- Dynamic vs. static channel assignment
- Dynamic radio management
- Software defined radios
- RF profiles
- Select and/or recommend the appropriate equipment for the design and selected architecture (APs, antennas, controllers, managed services)
Produce a design to meet requirements
- Select and use the appropriate design tools
- Design and survey software and hardware
- Spectrum analysis software and hardware
- Access points and antennas
- Portable power source
- Tripods
- Measuring tools
- Cameras
- Personal Protective Equipment (PPE)
- Select and use the appropriate design methodologies
- WLAN predictive design (new builds/site or area not accessible)
- Validated RF modeling
- AP-on-a-Stick (APoS) measurements
- Bridge and mesh planning
- Understand and use the common features of wireless design software
- Import and scale floor plans
- Model attenuation of the site (including calibration)
- Select and place APs and antennas
- Adjust AP and antenna settings
- Define requirement areas and parameters
- Define channel and power settings
- Select and use common vendor features and make configuration recommendations
- Band steering
- Automatic/static channel selection
- Load balancing
- RF/AP templates
- Design for different client and application types
- VoIP handsets
- Laptops
- Handheld scanners
- Smartphones and tablets
- IoT and smart devices
- Location tracking systems
- Voice and video systems
- Ensure end-to-end QoS is properly implemented
- WMM
- Wired and wireless QoS mappings
- QoS markings, classifications, and queues
- Define and recommend security solutions
- Monitoring (detection and prevention)
- Authentication servers
- EAP methods
- Authentication types
- Encryption types
- Design for secure roaming
- Secure BSS transition (roaming)
- Vendor roaming solutions
- Client support issues
Create, distributed, and communicate design documentation
- Bill of Materials (BoM)
- Design reports
- Physical installation guide
Deploy the WLAN - 10%
Ensure proper understanding and implementation of the design
- Implementation meeting
- Explain design decisions to implementers
- Ensure understanding of design deployment
- Distribute required documentation
Recommend or perform essential deployment tasks
- Understand and perform installation procedures for different WLAN architectures (cloud-based, controller-based, WNMS, autonomous)
- Infrastructure configuration supporting the WLAN (DHCP, DNS, NTP, switches, and routers)
- Channel assignment, automatic radio management, and transmit power configuration
- Installation procedures for cloud-based APs, controller-based APs, WNMS APs, and autonomous APs
Perform an installation audit for quality assurance
- Verify proper AP and antenna location and orientation
- Verify aesthetic requirements are met
- Verify physical security of the installation
Validate and Optimize the WLAN - 25%
Confirm the WLAN system is operational
- AP Status
- Verify PoE provisioning of power requirements are met
Perform an RF validation survey
- Ensure coverage requirements
- Evaluate impacts of contention and interference
Perform client performance testing
- Connectivity testing
- Application testing
- Roaming testing
- Capacity testing
- Security testing
Recommend appropriate physical adjustments
- AP
- Antenna and connectors
Recommend appropriate RF adjustments
- RF channel assignment
- RF channel bandwidth
- RF coverage (transmit power, radio count, antennas)
- RF interference issues
Recommend remediation for application issues
- Connectivity issues
- Application issues
- Roaming issues
- Capacity issues
- Security issues
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CWNP Certified Wireless Design Professional Sample Questions (Q39-Q44):
NEW QUESTION # 39
During a validation site survey, you realize that the installers mounted some of the APs above the ceiling.
They said that this was a request from
the building architect due to aesthetics constraints. During the requirements gathering, you weren't advised about any aesthetics constraints from the main stakeholder of the project. What should you do in this case?
- A. Increase the output power on all APs by 6 dB immediately.
- B. Advise the stakeholder that WLAN performance requirements will not be met and a new design process will be needed to meet the requirements.
- C. Remove all external antennas and use only the internal antennas to reduce multipath.
- D. Leave it as it is and allow automatic channel management to correct any issues.
Answer: B
NEW QUESTION # 40
What are the two most common industry-standard protocols used to transport data from an AP to a Wireless LAN Controller?
- A. SSL and SSH
- B. CAPWAP and GRE
- C. TLS and SSL
- D. LWAPP and FTP
Answer: B
NEW QUESTION # 41
An enterprise customer is subject to the highest standards for network uptime. When designing their wireless network, you should consider which of the following?(Choose all that apply) Response:
- A. The failover of the wireless and wired network
- B. The failover of the wireless network only
- C. The physical aspects such as power and cabling
- D. The failover of the wired network only
Answer: A,C
NEW QUESTION # 42
What differences exist between VLANs in wireless and wired domains?
Response:
- A. Wireless VLANs are never carried in 802.11 frames that cross the wireless medium. VLAN identifiers are always carried in Ethernet frames to indicate the proper VLAN.
- B. Wireless VLANs are not effective for segmenting the available services and network permissions available to clients. Wired VLANs are effective for this purpose.
- C. Wireless VLANs are not an effective way to utilize a single set of infrastructure equipment to provide different services to different client groups. Wired VLANs are effective for this purpose.
- D. Wireless VLANs do not always segment traffic into separate broadcast domains on the wireless medium. Wired VLANs do segment broadcast domains on the wired network.
Answer: D
NEW QUESTION # 43
How much more power can a 1 Mbps 802.11b signal have than a 54 Mbps 802.11g signal if it is sent through a saturated amplifier?
Response:
- A. 2 dBm
- B. 5 dB
- C. 5 dBm
- D. 2 dB
Answer: B
NEW QUESTION # 44
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